ATCP 93.350(7)(c) (c) Protection against overheating or overcooling shall be provided for heated or cooled tanks in accordance with generally accepted engineering practices.
ATCP 93.350 Note Note: Means of protection may include temperature controllers, insulation, alarms, cooling systems and special material selection.
ATCP 93.350(8) (8)Leak detection for underground tank systems.
ATCP 93.350(8)(a)(a) Underground storage tank systems that contain federally regulated hazardous substances shall be equipped with a leak detection system which will detect a leak in the primary containment of the tank and piping.
ATCP 93.350(8)(b) (b) The leak detection method shall be capable of meeting the requirements in s. ATCP 93.510, except as provided in par. (c).
ATCP 93.350(8)(c) (c) Other methods of leak detection may be used if approval from the department is obtained before the installation and operation of the new UST system.
ATCP 93.350(9) (9)Corrosion protection. Corrosion protection shall be provided in accordance with s. ATCP 93.520 for underground storage tank systems or s. ATCP 93.400 for aboveground storage tank systems.
ATCP 93.350(10) (10)Identification and labeling.
ATCP 93.350(10)(a)(a) Transfer points shall be labeled with the name of the substance transferred.
ATCP 93.350(10)(b) (b) Aboveground tanks storing hazardous substances within the scope of this section shall be identified and labeled in accordance with s. ATCP 93.400 (7).
ATCP 93.350 Note Note: Section ATCP 93.400 (7) requires conformance with NFPA 704.
ATCP 93.350(10)(c) (c) All tanks on a property shall have a unique tank identification number that is readily visible to emergency response personnel.
ATCP 93.350(11) (11)Inspections, changes in service, tank closure and releases from a tank.
ATCP 93.350(11)(a)(a) Aboveground storage tanks.
ATCP 93.350(11)(a)1.1. Aboveground storage tanks shall comply with ss. ATCP 93.440 to 93.470, except as provided in subd. 2.
ATCP 93.350(11)(a)2. 2. Periodic inspections of aboveground tanks may be conducted in accordance with any nationally recognized standard that is more applicable to hazardous tanks than STI SP001.
ATCP 93.350 Note Note: Aboveground storage tanks which store hazardous substances and which have a capacity of less than 5,000 gallons are exempt from this chapter unless the substance is also flammable or combustible.
ATCP 93.350 Note Note: Sections ATCP 93.440 to 93.470 address inspections; seldom-used and temporarily-out-of-service tanks; change in service to store a non-regulated substance; tank closures; tank-system site assessment; and confirming and responding to leaks, spills, overfills and releases.
ATCP 93.350(11)(b) (b) Underground storage tanks. Underground storage tanks shall comply with ss. ATCP 93.545 to 93.585.
ATCP 93.350 Note Note: Sections ATCP 93.545 to 93.585 address seldom-used and temporarily-out-of-service tanks; change in service to store a non-regulated substance; tank system closures; conditions indicating releases; tank-system integrity assessments; tank-system site assessments; and responding to leaks, spills, overfills and releases.
ATCP 93.350(12) (12)Qualifications of tank installers. The installation of a storage tank under this section shall be performed under the direct supervision of a qualified engineer who is competent in the engineering methods for installing hazardous substance tank systems.
ATCP 93.350(13) (13)Security at chemical storage facilities. Owners and operators shall be aware of regulations, standards and operating practices that relate to facility security.
ATCP 93.350 Note Note: Information on how to develop a comprehensive site security program is available in the API document Security Guideline for the Petroleum Industry, or the American Chemistry Council document Site Security Guidelines for the U.S. Chemical Industry.
ATCP 93.350 History History: CR 07-029: cr. Register November 2008 No. 635, eff. 2-1-09; correction in (3) (k) 3. a. made under s. 13.92 (4) (b) 7., Stats., Register November 2008 No. 635; CR 09-017: am. (2) (a) to (c) Register July 2009 No. 643, eff. 8-1-09; correction in (2) (b), (3) (j) 1., (8) (b), (9), (10) (b), (11) (a) 1., (b) made under s. 13.92 (4) (b) 7., Stats., Register December 2011 No. 672; corrections in (2) (b), (3) (j), (8) (b), (9), (10) (b), (11) (a) 1., (b) made under s. 13.92 (4) (b) 7., Stats., Register October 2013 No. 694; CR 16-012: am. (2) (b) Register August 2016 No. 728, eff. 9-1-16.
ATCP 93.360 ATCP 93.360Storage of Class IA flammable liquids.
ATCP 93.360(1)(1) All storage, whether new or existing, of Class IA flammable liquids with a Reid vapor pressure not exceeding 25.3 psig (40 psia) and a boiling point of less than 100oF shall comply with the applicable requirements of NFPA 30 and this chapter, except as provided in sub. (2).
ATCP 93.360(2) (2) Design standards for new tank systems do not apply to existing tank systems unless specified otherwise.
ATCP 93.360 Note Note: See chapter SPS 341 for additional requirements that may apply to flammable liquid storage in pressure vessels at pressures greater than 15 psig.
ATCP 93.360 History History: CR 07-029: cr. Register November 2008 No. 635, eff. 2-1-09.
ATCP 93.370 ATCP 93.370Emergency shut-off for transfers. An emergency electrical shut-off shall be installed in accordance with NFPA 30A section 6.7 on any new or existing system that provides for the transfer of product from a fixed storage tank system to a tank vehicle, rail tank car or vehicle fuel tank. Existing systems shall comply with this section within 2 years after December 31, 2009.
ATCP 93.370 History History: CR 07-029: cr. Register November 2008 No. 635, eff. 2-1-09; CR 09-017: am. Register July 2009 No. 643, eff. 8-1-09.
subch. IV of ch. ATCP 93 Subchapter IV — General AST Storage
ATCP 93.400 ATCP 93.400General requirements.
ATCP 93.400(1) (1)Aboveground tank design.
ATCP 93.400(1)(a)(a) General. Tanks designed and built for underground use may not be used aboveground.
ATCP 93.400(1)(b) (b) Tanks for Class I, II or IIIA liquids. Tanks used for aboveground storage of Class I, II or IIIA liquids shall comply with the tank construction and marking requirements in s. ATCP 93.250.
ATCP 93.400(1)(c) (c) Tanks for Class IIIB liquids. Tanks which have a capacity of 1,100 gallons or more and which are used for aboveground storage of Class IIIB liquids shall be listed or shall be acceptable to the department.
ATCP 93.400 Note Note: See section ATCP 93.130 (5) for listing and labeling requirements for aboveground tanks.
ATCP 93.400(1)(d) (d) Tank foundations. Tank foundations shall be designed to prevent uneven settling of the tank. Tank supports shall be placed on a prepared, flat, smooth, solid surface.
ATCP 93.400(2) (2)Corrosion protection.
ATCP 93.400(2)(a)(a) General. Aboveground storage tank systems shall be protected from excessive external corrosion through the use of paint, protective coatings, or corrosion resistant materials that are applied after the surface has been prepared in accordance with the manufacturer's recommendations.
ATCP 93.400(2)(b) (b) Tank systems. Any portion of an aboveground tank system that is in contact with the ground shall be protected from corrosion by one of the following methods:
ATCP 93.400(2)(b)1. 1. The tank system is constructed of an inherently corrosion-resistant material.
ATCP 93.400(2)(b)2. 2. The tank system is isolated from the ground by a method acceptable to the department.
ATCP 93.400 Note Note: Methods of isolation acceptable to the Department include dielectric coating, placement on clean concrete, placement on an elevated ring wall or mounting on listed saddles.
ATCP 93.400(2)(b)3. 3. The tank system is protected by a sacrificial anode or impressed current system.
ATCP 93.400(2)(b)4.a.a. Single- or double-wall tanks which are constructed of material subject to corrosion and which are supported on runners or tank supports shall be constructed such that the bottom of the tank shell is at least 3 inches but no more than 12 inches above grade, as measured from the lowest point of the tank shell, except the 12-inch maximum does not apply where subd. 4. b. is met.
ATCP 93.400(2)(b)4.b. b. The 12-inch maximum in subd. 4. a. may be exceeded where structural fire resistance is provided that complies with NFPA 30 section 22.5.2.4.
ATCP 93.400(2)(c) (c) Underground piping. All new and existing underground piping connected to an aboveground tank shall be protected from corrosion using one of the methods in s. ATCP 93.520 (1). Existing piping shall comply with this paragraph and par. (d) within 2 years after February 1, 2009.
ATCP 93.400(2)(d) (d) Designed corrosion protection systems.
ATCP 93.400(2)(d)1.1. Aboveground tank systems equipped with a new sacrificial anode or impressed current corrosion protection system shall follow the installation, operation, maintenance and testing requirements in s. ATCP 93.520.
ATCP 93.400(2)(d)2. 2. Existing sacrificial anode or impressed current corrosion protection systems shall follow the operation, maintenance and testing requirements in s. ATCP 93.520.
ATCP 93.400(3) (3)Secondary containment for piping.
ATCP 93.400(3)(a)(a) When any underground piping is installed as part of a new tank system or when 50 percent or more of a run is replaced, the piping shall be provided with approved secondary containment with approved non-discriminating interstitial monitoring, except as specified in par. (g).
ATCP 93.400(3)(b)1.1. The material used for fabricating both the primary and secondary containment shall be listed in accordance with a standard that assures liquid- and vapor-tightness.
ATCP 93.400(3)(b)2.a.a. Secondary containment sumps shall be fabricated and installed in a manner that prevents release of liquids. These sumps shall be tested for leaks hydrostatically at installation, to the levels specified in subd. 2. b. to d., in accordance with the manufacturer's instructions and the requirements of this chapter, for a period of not less than 60 minutes.
ATCP 93.400(3)(b)2.b. b. To no less than 1 inch over the top of the highest penetration.
ATCP 93.400(3)(b)2.c. c. To no less than 1 inch over the top of any horizontal joint between wall sections.
ATCP 93.400(3)(b)2.d. d. To no lower than the top of any vertical joint.
ATCP 93.400(3)(c) (c) All pipe connections at a dispenser for motor vehicle fueling that are installed or replaced on or after February 1, 2009, shall be placed within a secondary containment sump at the time of installation or replacement, except as exempted in par. (e).
ATCP 93.400(3)(d) (d) All pipe connections at a dispenser for motor vehicle fueling that were in existence or under construction before February 1, 2009, shall be placed within a secondary containment sump by December 31 of the fifth year following February 1, 2009, except as exempted in par. (e).
ATCP 93.400(3)(e) (e) A secondary containment sump is not required under the pipe connections at a dispenser if the storage tank system meets all of the following conditions:
ATCP 93.400(3)(e)1. 1. All piping is aboveground and readily accessible for inspection.
ATCP 93.400(3)(e)2. 2. The dispenser and all the pipe connections at the dispenser are on or above a surface that is at least as impermeable as concrete.
ATCP 93.400(3)(f) (f) All pipe connections at a transition between aboveground and underground piping that are installed or replaced on or after February 1, 2009, shall be placed within a secondary containment sump at the time of installation or replacement.
ATCP 93.400(3)(g) (g) Secondary containment is not required for underground piping that is evaluated and maintained in accordance with API Standard 570, by organizations that maintain or use an authorized inspection agency, a repair organization, and technically qualified piping engineers, inspectors and examiners, all as defined in API 570.
ATCP 93.400(3)(h)1.1. Secondary containment sumps provided under this subsection shall have non-discriminating electronic sensors that will detect liquids in the sump, unless approved otherwise by the department.
ATCP 93.400(3)(h)2. 2. Piping that is installed or replaced on or after August 1, 2009, at secondary containment sumps provided under this subsection may not pass through the bottom of the sump.
ATCP 93.400(3)(h)3. 3. All electrical conduit and wiring that is installed or replaced on or after August 1, 2009, at secondary containment sumps provided under this subsection for dispensers shall pass over the top of the sump wall rather than through the wall or bottom of the sump.
ATCP 93.400 Note Note: This subsection recognizes dispenser pans, spray-on liners, brushed-on liners, formed-in-place containment products, and other effective secondary containment practices that are currently in use.
ATCP 93.400(4) (4)Leak detection for piping.
ATCP 93.400(4)(a)(a) All new and existing underground piping connected to an aboveground tank shall be provided with approved leak detection in accordance with s. ATCP 93.510 (4), except as specified in par. (c). Existing piping shall comply with this paragraph within 2 years after February 1, 2009.
ATCP 93.400(4)(b) (b) Leak detection in accordance with par. (a) shall be installed immediately at the time of new installation or replacement of pipe.
ATCP 93.400(4)(c)1.1. Piping over 4 inches in diameter shall follow the plan and system requirements and deadlines in s. ATCP 93.517, except as specified in subd. 2. Leak detection for piping of 4 inches in diameter or less may be provided as specified in subd. 2. only if approved in writing by the department.
ATCP 93.400(4)(c)2. 2. Leak detection for piping may consist of evaluations that are performed in accordance with API 570, by organizations that maintain or use an authorized inspection agency, a repair organization, and technically qualified piping engineers, inspectors and examiners, all as defined in API 570.
ATCP 93.400(5) (5)Installation.
ATCP 93.400(5)(a)1.1. The installation of shop-built tanks and associated piping shall be performed or supervised by a certified installer.
ATCP 93.400(5)(a)2. 2. A certified installer shall verify that the installation of the electrical components for a tank system does not conflict with this chapter, except this verification is not required for the electrical criteria in ch. SPS 316.
ATCP 93.400(5)(b) (b) All installation shall be in accordance with the manufacturer's instructions, the applicable national standards adopted in s. ATCP 93.200, plans and specifications approved under s. ATCP 93.100 and this chapter.
ATCP 93.400(5)(c) (c) Single wall horizontal-cylindrical and rectangular aboveground storage tanks shall be installed to allow full visual inspection of the outer tank shell, except for any portion of the shell that is in contact with a support for it.
ATCP 93.400(5)(d) (d) The foundations for all types of tanks shall be designed to minimize the possibility of uneven settling, and to minimize corrosion in any part of the tank resting on the foundation.
ATCP 93.400(5)(e) (e) Tank supports shall be placed on a prepared, flat, compacted surface.
ATCP 93.400(5)(f) (f) Upon completion of any installation of new or replacement shop-built tanks or piping, or any modification or upgrade thereto that requires plan approval or registration, the certified installer shall provide the authorized agent or the department with a completed tank installation checklist, form TR-WM-120.
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Published under s. 35.93, Stats. Updated on the first day of each month. Entire code is always current. The Register date on each page is the date the chapter was last published.